<%@ page contentType="text/html; charset=UTF-8" pageEncoding="UTF-8" %>
<!DOCTYPE html>
<html>
<head>
    <title>JSP - Hello World</title>
</head>
<body>
<form action="/user/signIn" method="post">
    <input type="text" name="username" placeholder="username">
    <br>
    <input type="password" name="password" placeholder="password">
    <br>
    <input type="submit" value="sign in">
</form>
<a href="signUp.jsp">sign up</a>
<p style="color:red;">${sessionScope.error}</p>

</body>
</html>